J.Jpn. Surg. Soc.. 57(8): 1411-1425, 1956

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THE MOVEMENTS OF THE SMALL INTESTINE AFTER TOTAL GASTRECTOMY
PART I. THE MOVEMENTS OF THE DUODENUM AND JEJUNUM AFTER VAGOTOMY

The effect of subdiaphragmatic bilateral vagotomy, an inevitable result of total gastrectomy, on the movements of the genu inferius duodeni and of the upper portion of the jejunum was investigated in rabbits by cutting the vagus on either side at a point directly under the diaphragm and by measuring the subsequent internal pressure of those parts of the small intestin. The pressure was recorded by the balloon-kymographic method through a gastric fistular canal. The results reached were as follows.
1) In the genu inferius duodeni.
(i) The internal pressure tended to fall below normal at its lower level after vagotomy, but was restored to the original level in 29 to 32 days.
(ii) The movements were reduced in amplitude after vagotomy and returned to the original level in 29 to 32 days.
(iii) Vagotomy produced no change in the frequency of small waves or in the frequency or the duration of tonus waves.
2) In the upper portion of the jejunum.
(i) The internal pressure tended to fall below normal at its lower level after vagotomy and came back to the original level in 30 to 34 days.
(ii) The movements were reduced in amplitude after vagotomy and raised to the original level in 30 to 34 days.
(iii) No change was produced by vagotomy in the frequency of small waves or in the frequency or the duration of tonus waves.
It thus appears that the effect of vagotomy on the movements and tonus of the genu inferius duodeni and of the upper portion of the jejunum, being of relatively short duration, cannot persist long after total gastrectomy.
(author's abstract)

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